Well-drilling machinery.



N0.s87,v75. Y PATENTED MAY19,1908."

H.R.DEGKBR.

v WELL. DRILLING MACHINERY. APPLIoATIoN TILBD Nov. 2.j 1 906.

2 SHEETS-SHEET 1.

PATENTED MAY 19 H. R. DECKER. WELL DRILLIN G MACHINERY.

APPLICATION FILED NOV. 2. 1906 1| WIL.- r: I4@ f Mimmo screwing and T0-all whom it may concern:

, detail view of the c .UNITED sTATlts PATENT OFFICE.

HARRY R. DECKER, OF HOUSTON, TEXAS.

' WELL-DRILLING MACHINERY.

Be it known that I, HARRY R. DECKER, citizen of the United States, residing at Houston, in the county of Harris and State -of Texas, have invented certain new and useful Improvements inWell-Drilling Machinery, of which the following is a specification. My invention relates. to machinery for drilling Wells in alluvial deposit soil and has for its object the iin rovement of the rotary ordinarily used in tliiis work by which the rotary may be used for screwing and unt e lengths of tubular casings or drill stein instead of it being necessary to do the screwing b hand, or use a machine designed expressy for a combination rotary screwer. y To this end my invention consists in-se curing ears t9 the top'of the rotary table to receive the ends of arms, su portingl tube clamps to gras the length 0F tubing to be turned, while t e tubing in the well bore is held from turning by `means of a supporting sleeve or nipple secured to the upper end of the surface casing to which is secured an upright post which engages the handle of pi e tongssecured to thecoupling ring' at t e lower end ofthe length of tbing that is being unscrewed, or other clamping devices ma be used as desired.

he construction and o eration of my improved -well drilling macliinery will be eX- plained in detail hereinafter and illustrated in the accompanying drawings in which- Figure 1 is a vertical sectional view of the upper end of a well bore and the surface casing seated therein, and of a rotary drilling machine 'showing my improvements added thereto, Fig..2, a to plan view, and Fig. 3, a

am ing jaws. In the drawings simi ar reference characi ters indicate corresponding parts throughout the several views.

1 represents the frame of a rotary drilling machine, 2 the drill hole and 3tlie` surface casing of hole 2. The b ase plate or ring 4 of the rotary is .secured to frame l and is provvided with a raceway ring 5 in its upper surface in which is mounted antifrictionbearings 6. The rotary table 7 is provided with a raceway ring 8 in its bottom surface complementary to raceway ring 5 to receive antiiriction bearings 6, a groove 9 in its side to receive clamps 10 secured to base late or ring 4, and beveled gear face 11 wit which Specification of Letters Patent. 2

Application led November 2, 1906. Serial No. 341,761.

" Patented May`19, 1908.

meshes a beveled gear wheel 12 keyed to a power shaft 13.

14 indicates clamping jaws of any selected construction, slidably mounted on top of table 7 to clamp the tubular drill tube 15 when the machine is used for drilling but which are drawn back in the position shown when the device is used for screwing tubing or casing `as hereinafter described.

In fitting the rotary in general use fora casing or vtubing screwer- I secure perforated r'ears 16 to the top of the table adjacent to its edge to receive the horizontal portion 18 of legs 19 pivotally secured to clamping jaws 20 having cylindrical clamps 21 journaled therein which are held in engagement with the length of tubing to be screwed by means of threaded rods 22 pivotally secured in notched ears 23 on one jaw 20 and which fall into notched ears 23 on the other jaw, a nut 24 on each rod 22 being used to tighten the grip of the clamps 21 on the tubing 15.

25 indicates a sleeve consisting of a short length of tubing of the same diameter as the surface casing 3 and secured 'thereto by means of a coupling ring or nipple 26.` A post 27is secured to the upper end of sleeve 25'to engage the handle of pipe tongs 28 secured to the coupling ring or nipple 15*1 connecting the length of tubing to be screwed with the balance of the drill stein 15.

28 indicates screw shafts secured in frame 1 and adapted to engage sleeve 25', when in position, to steady it.

29 indicates a conventional elevator used in handling well tubing.

In operation when it is desired to remove the drill stern from the well or to replace it the sleeve 25 is secured to the upper end of surface casing 3 by means of coupling ring or nipple 26. The sleeve 25 may be secured in position by hand or the clamping jaws '20 may be secured to the drill tube 15 and a pair of pipe -tongs tov the saine length of the drill tube and the drill tube rotated so as to screw the sleeve 25 into 'the nipple. 'The pipe tongs 28 are then secured 'to coupling ring or nipple b15a and the jaws 20 are secured to th'e length of tubing above the nipple 15a. The pipe tongs, by engaging the post 27, will prevent rotation of the drill stem in the well, while,

ower :ft 13 and gearing 11 and 12, the length of tubing abovenipple 15a may be screwed or unscrewed as desired.

blyirotating the table 7 by means oi'- s a here,

Having thus described my invention what I claim is-'- 1. In combination with a rotary drilling machine, surface casing secured 1n a well bore, and a drill stem in the well bore, comprising coupled lengths of tubing, a sleeve secured to the surface casing having a projeetion thereon, a clamping device secured to the drill stem and enga ing said projection to h'old the drill stern in t e well bore stationary, and means secured to the rotary drilling machinel to rotate one length of said drill stern, substantially as shown and described.

2.' In combination With a rotary drilling machine, surface casing Secured in a well bore, and a drill stem in the well bore, coinprising coupled lengths of tubing, a sleeve sccured to the surface casing having a )rejection thereon, pipe tongs secured to t e drill stem and engaging said projection to hold the drill stein in the well bore stationary, and means secured to the rotary drilling machine to rotate one length 0f said drill stem, substantially as shown and described.

3. In combination with 'a rotary drilling machine, surface casing secured ina well bore, and a drill stem in said Well bore comprising cou led lengths of tubing, a sleeve to t e surface casing, a. post secured to the upperend of said sleeve, a clamp secured to the drill stem and engaging the post to hohl the drill stem stationary, and means secured to the rotary drilling machine to rotate one length of said drill stem, substantially as shown and described.

4. In combina-tion with a rotary drilling machine, surface casing secured in a well and a drill stein in the well bore, comprising coupled lengths of tubing, a sleeve secured to the surface casing having a projection thereon, a clamping device secured to the drill stem and engaging said projection'to hold the drill sten in the well bore stationary, and clamping jaws Secured'to the rotary drilling machine to engage one length of .the drill stem and rotate it, substantially as shown and described.

5. In .combination with a rotary drilliiuT machine,y surface, casing secured in a wel bore, and a drill stein in the well bore, comprising coupled lengths of tubing, a sleeve secured to the surface casing having a projection thereon, a clamping device secured to the drill stem and engaging said projection to hold the drill stem in the well bore stationary, perforated ears secured to the rotary drilling machine, `-and clamping jaws having supports shaped to'iit said ears, said clamping jaws being adapted to engage one length of the drill stein, substantially as shown and. described.

In combination with a rotary drilling machine, surface casing secured in a well bore and a drill stem in the well bore, comprising coupled lengths oltublng, a sleeve secured secured 1 to the surface casing having a projection thereon, pipe tongs secured to the drill stem and engaging said projection to hold the drill stern in the well bore stationary', and clamping jaws secured to the rotary drilling maehine to engage one length ofthe drill stern and rotate it, substantially as shown and described. j

7. In combination with a rotary drilling machine, 4surface `c'asing secured in a Well bore, and a drill stem in said well bore comprisingcoujiled lengths of tubing, a sleeve securedto the surface casing, a post secured yto the upper end ofl said sleeve, a clamp secured to the drill stein and engaging the lpost to hold the drill stem stationary, and clamping jaws secured to the rotary drilling machine to engage one lengt-h of the drill stem, substantially as shown and described.

8. In combination with a rotary drilling machine, surface casing secured in a well bore, and a drill stem in the well bore, coinprising coupled.lengths of tubing, a sleeve secured to the surface casing having a projection thereon., pipe tongs secured to the drill stein and engaging said projection to hold the drill stem in the well bore stationary, perforated ears secured to the rotary drilling machine, and clamping jaws having supports to engage said ears, said` clamping jaws being adapted to engage one length ofthe drillv stein, substantially as shown and described.

t). ln combination with a rotary. drilling machine, surface casing secured in a Well bore, and a drill stein in said well bore coinprising coupled lengths of tubing, a sleeve secured to the surface casing, a post secured to the upper end'of said sleeve, a clamp secured to the. drill stem and engaging the post to hold'the. drill stem stationary, perforated ears secured to the rotary dril ing machine, and clamping jaws having supports to engage said ears, said clamping jaws being adaptedv to engage one length of the drill stein, substantially as shown and described.

it). ln combination with a rotary drilling machine, surface casing secured in a Well bore, and a drill stein in said well bore comprising coupled lengths of tubing, a sleeve secured to the surface casing, screw shafts mounted on the drilling machine to engage said sleeve, a post secured to the upper end of said sleeve, a clamp secured to the drill stem and engaging the post to hohl the drill stem stationary, perforated ears secured to the drilling machine, and clamping jaws engaging said ears and adapted to engage one length of the drill stern, substantially as shown and described.

In testimony whereof I hereto aflix my signature in the presence of two witnesses.

,nAiniY n. innemen. Witnesses:

G. C. Boomer, E. li. DnNNis 

